Question 16

Baroreceptors are stretch receptors composed of fine branching nerve endings that are contained along the arterial walls and send out messages related to stretching along the arterial walls.

This statement is not a detail from the passage as it inaccurately describes the function of baroreceptors without capturing the essence of their role in blood pressure regulation.

A) Baroreceptors are stretch receptors composed of fine branching nerve endings that are contained along the arterial walls and send out messages related to stretching along the arterial walls.

This statement is incorrect as it suggests that the primary function of baroreceptors is merely to send messages related to stretching. While it does mention their location and composition accurately, it fails to highlight their role in regulating blood pressure through impulses that influence heart and vascular activity.

B) Chemoreceptors are located along the walls of the arteries and monitor changes in oxygen level, carbon dioxide, and pH.

This statement is correct and aligns perfectly with the passage, which states that chemoreceptors monitor changes in these critical parameters and send impulses to affect blood pressure.

C) The kidneys play a role in regulating blood pressure by absorbing salts and water.

This choice is also correct, as the passage describes the kidneys' function in regulating blood pressure through the absorption of salts and water, highlighting their importance in blood volume regulation.

D) The heart is the body's pump, which regulates the flow of vitally needed oxygen to all cells of the body.

This statement is accurate as well, reflecting the passage's description of the heart's function in oxygen delivery and waste removal, which is essential for maintaining blood pressure.

Conclusion

The correct answer is A, as it misrepresents the function of baroreceptors by omitting their critical role in blood pressure regulation. Options B, C, and D accurately reflect details provided in the passage, demonstrating their relevance to the cardiovascular system's functioning. Therefore, A stands out as the only statement that does not correctly represent information from the text.